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Simplifying 5q + 7r = 42 Solving 5q + 7r = 42 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-7r' to each side of the equation. 5q + 7r + -7r = 42 + -7r Combine like terms: 7r + -7r = 0 5q + 0 = 42 + -7r 5q = 42 + -7r Divide each side by '5'. q = 8.4 + -1.4r Simplifying q = 8.4 + -1.4r
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